This is dangerously close to insinuating that some percentage of religiously motivated decision making is actually mental illness. I support the idea, I just get castigated when I say or imply it.
I think you probably have a much different experience than a lot of people. I was raised a Christian, but an Episcopal, which is basically a forum for members of Daughters of the American Revolution to have coffee together without the danger of interference from minorities. It took me until I was in like middle school to find out that some people actually believe the fairy tales (or whatever you want to call them) in the Bible. So my perspective isn't one that comes from a place of evangelism, and I can't say how I would feel if it had, but I'd probably harbor some anger, too. All that said, I do think there's plenty of space for religion and reason, so long as neither is stepping on the other's toes. Stephen Jay Gould called this the non-overlapping magisteria principle. Basically, we can coexist so long as religion stays in and studies the metaphysical space and leaves the physical world to the rest of us, and vice versa.
Agreed on all counts. What a great shame then that Christianity, writ large, refuses to stay in it's own lane and instead DOES MAKE positive claims about the reality we all have to share, and those claims lead to people making choices that end up jeopardizing not only their own health and safety but the health and safety of others.